Suggestions on new bike buy

Hello everyone, newbie to the site. Ran across it thru a search engine and seemed like a good place to get some ideas and suggestions. I have always enjoyed riding my bike. My wife bought a new bike a couple of years ago and we started riding together. The bike I have now, has just about ran its course. It is a cheap Royce Union that I got when I was 14 (I'm 30 now), so it has seen a lot of miles. Now I need a new bike or a nice used one.

I'd like to keep my budget under $200. We mostly just ride around town but plan on getting into trail riding. She has a mountain bike, so I would like to get another bike that I can ride around town and on the trails.

I know $200 isn't much, and the better bikes will not be possible. What is maybe a good brand I can search for or style to go after? If you need anymore details of what I am wanting, just ask.

There is the Genesis 29er from Walmart that you might want to try, but I am unsure about price. it will almost certainly be junk, but that is it for new under $200. You might be able to find used bikes from the 1990s around or under $200, but no recent bike in good shape will cost $200.
If I were you I would save up my pennies and buy a $800 new bike.